Something cute, friends become lovers

I've been kind of stressed lately.... So I wanted to read something light and cutesy and funny, where longtime friends end up in a relationship together. I know there's a "friends become lovers" tag, but I have some more specific criteria, so.

Oh, and I want them to actually be friends. Their friendship shouldn't just be an excuse to have drama and/or romantic tension. They should be able to joke around each other. Be comfortable around each other. I prefer short series but I'm not too picky about that.

Usotsuki Lily Its really light hearted (most of the time) and a gag/parody manga. The main couple gives off a feeling of "Awww". I think one of the set of friends has a childhood romance. (Check out Volume 0)